fix(qt): the Source column draws the real Qobuz and Plex marks

Owner: "si es de qobuz, icono de qobuz, si es de local (folder o plex) cada uno
tiene sus svg; Slint y Tauri los tenían bien."

They did. The port did not, and the reason was an asset gap rather than a
styling choice: `qobuz-logo-filled.svg` and `plex-logo.svg` were never carried
over from the Slint tree, so `SourceIcon` substituted `cloud-download` for every
Qobuz kind and a tinted `hard-drive` for Plex — drawing "downloaded" and "local
file" where the design calls for two brand marks. Both assets now live in
`qml/assets/brand/`, beside the Discogs / Last.fm / MusicBrainz marks that are
there for exactly the same reason.

The rule this restores is one `SourceGlyph.slint:4-8` calls load-bearing: the
full-colour logos render UNTINTED and only the monochrome local glyph is tinted,
to MUTED text and never accent. Slint spells out why — routing a logo through a
tinting primitive "would turn the logos into a flat accent silhouette, the bug
this primitive replaces". `QbzIcon` floods every pixel with its tint, so the two
logo arms deliberately do not go through it.

`qobuz_purchase` is the one arm that must tint a multi-colour asset (the same
mark in #eab308 — the colour is what says "purchased"), so it is the one arm
that uses an effect, and it degrades on a software renderer to the untinted mark
rather than to nothing.

The two ROW call sites now pass SourceGlyph's own numbers (15px, muted) instead
of inheriting the version picker's (14px, secondary) — the two Slint components
this file stands in for disagree on both, which is why they are properties.

Verified by driving the app: the Qobuz rows show the Qobuz mark and the Plex
rows the gold Plex chevron, in their own colours, with zero "Cannot open" in the
log.

cc

crates/qbz-qt/qml/assets/brand/plex-logo.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?><!-- Uploaded to: SVG Repo, www.svgrepo.com, Generator: SVG Repo Mixer Tools -->
+<svg xmlns="http://www.w3.org/2000/svg"
+aria-label="Plex" role="img"
+viewBox="0 0 512 512"><rect
+width="512" height="512"
+rx="15%"
+fill="#282a2d"/><path d="m256 70h-108l108 186-108 186h108l108-186z" fill="#e5a00d"/></svg>

crates/qbz-qt/qml/assets/brand/qobuz-logo-filled.svg

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crates/qbz-qt/qml/views/local/SourceIcon.qml

@@ -1,73 +1,111 @@
-// Per-version / per-row source glyph: hard-drive for a local file, the Qobuz
-// mark for an offline/purchased copy (gold when purchased), the Plex mark for
-// Plex.
+// Per-source glyph — the QML port of `primitives/SourceGlyph.slint`, used by
+// the version picker, the MyQBZ collection-detail rows and the Discography
+// Builder rows.
 //
-// ── IT STANDS IN FOR TWO SLINT COMPONENTS, WHICH DISAGREE ──────────────────
-// `album/LocalAlbumView.slint:22-37` (`SourceIcon`) — the VERSION PICKER's
-// glyph: 14px, and the monochrome local glyph tinted `Theme.text-SECONDARY`.
-// `primitives/SourceGlyph.slint:15-32` — the shared row glyph used by the MyQBZ
-// collection-detail rows (`MixtapeDetailView.slint:370`), the Discography
-// Builder rows (`DiscographyBuilderView.slint:54`), FavoritesView and TrackRow:
-// 15px, and the local glyph tinted `Theme.text-MUTED`, never accent.
-// (They also disagree on plain `"qobuz"`: LocalAlbumView lets it fall through to
-// hard-drive, SourceGlyph gives it the Qobuz mark. This file follows SourceGlyph
-// there — see `kind` below.)
+// ── THE LOAD-BEARING RULE (SourceGlyph.slint:4-8) ─────────────────────────
+// The full-colour Qobuz and Plex logos render **UNTINTED**; only the
+// monochrome local hard-drive glyph is tinted, and to MUTED text, never
+// accent. Slint states the reason out loud: routing the logos through a
+// tinting primitive "would turn the logos into a flat accent silhouette — the
+// bug this primitive replaces". `QbzIcon` floods every pixel with its tint, so
+// the logo arms deliberately do NOT go through it — they are plain `Image`s.
 //
-// So the two numbers that differ are PROPERTIES, and the DEFAULTS are the
-// version-picker set, which is what `views/local/VersionPicker.qml` (the only
-// two call sites that set neither) needs. A row that stands for SourceGlyph
-// passes `glyphSize: 15` and `localTint: "muted"`.
+// ── WHY THIS FILE USED TO LIE ─────────────────────────────────────────────
+// The port shipped with neither logo: `qobuz-logo-filled.svg` and
+// `plex-logo.svg` were never carried over from the Slint tree, so this
+// component substituted `cloud-download` for every Qobuz kind and a tinted
+// `hard-drive` for Plex — i.e. it drew "downloaded" and "local file" where the
+// design calls for two brand marks. Both assets now live in
+// `qml/assets/brand/`, which is where the untinted marks belong (the Discogs /
+// Last.fm / MusicBrainz marks are already there for the same reason).
 //
-// SourceGlyph's other size rule — 16px for the three qobuz kinds
-// (`SourceGlyph.slint:29`) — is deliberately NOT reproduced: it exists to
-// compensate the Qobuz WORDMARK's proportions, and this port does not draw that
-// glyph (see the asset gap). Widening a `cloud-download` substitute to 16 would
-// be a number with no reference behind it.
-//
-// ASSET GAP: the Qt icon set has NO `qobuz-logo-filled.svg` and NO
-// `plex-logo.svg` — neither an untinted master nor any tint directory
-// (`qml/assets/icons/{accent,amber,black,favorite,muted,primary,secondary,warning}/`
-// and `qml/assets/brand/` all verified). Both are present in the Slint tree
-// (`crates/qbz-ui/ui/assets/icons/`). Until they are ported the offline/purchased
-// copy reuses `cloud-download` and Plex reuses `hard-drive` in the accent tint —
-// the same substitution the Local Library cards already ship — and the "logos
-// render UNTINTED" rule those two arms exist for cannot be honoured at all,
-// because a substitute monochrome glyph has to be tinted to read.
+// `qobuz_purchase` reuses the Qobuz mark GOLD (#eab308) — same glyph as a
+// download, the colour is what says "purchased". That is the ONE arm that
+// needs a tint on a multi-colour asset, so it is the one arm that uses an
+// effect; on a software renderer it degrades to the untinted mark rather than
+// to nothing.
 
 import QtQuick
+import QtQuick.Effects
+import com.blitzfc.qbz
 import "../../theme"
 
-QbzIcon {
+Item {
     id: root
 
     /// "local" | "qobuz" | "qobuz_download" | "qobuz_purchase" | "offline" | "plex"
-    ///
-    /// Plain "qobuz" is what the MyQBZ collection items carry (a streamed Qobuz
-    /// album/track, not a download or a purchase). Without its own arm it fell
-    /// through to "hard-drive", i.e. every Qobuz row in a collection claimed to
-    /// be a local file. `SourceGlyph.slint:23` groups it with the downloads for
-    /// the same reason.
+    /// (anything else = local). Plain "qobuz" is what the MyQBZ collection
+    /// items carry; `SourceGlyph.slint:23` groups it with the downloads.
     property string kind: "local"
 
-    /// 14 = album/LocalAlbumView.slint:24 (the version picker).
-    /// 15 = primitives/SourceGlyph.slint:29-30 (every row glyph).
+    /// 14 = `album/LocalAlbumView.slint:24` (the version picker, the default
+    /// here because those are the call sites that set nothing).
+    /// 15 = `primitives/SourceGlyph.slint:29-30` (every row glyph).
+    /// SourceGlyph gives the three Qobuz kinds 16px to compensate the
+    /// wordmark's proportions (`:29`) — now reproducible, because the wordmark
+    /// is finally the asset being drawn.
     property int glyphSize: 14
-    /// Tint of the MONOCHROME local hard-drive glyph. "secondary" =
-    /// LocalAlbumView.slint:36; "muted" = SourceGlyph.slint:28, whose header
-    /// calls the muted-never-accent rule load-bearing.
+    /// Tint of the MONOCHROME local glyph. "secondary" = LocalAlbumView.slint:36;
+    /// "muted" = SourceGlyph.slint:28, whose header calls the
+    /// muted-never-accent rule load-bearing.
     property string localTint: "secondary"
 
-    width: root.glyphSize
-    height: root.glyphSize
-    name: (kind === "qobuz" || kind === "qobuz_download"
-           || kind === "qobuz_purchase" || kind === "offline")
-        ? "cloud-download" : "hard-drive"
-    // `warning` for the purchase gold (#eab308 in both Slint components) and
-    // `accent` to keep the Plex substitute distinguishable from a local file;
-    // everything else is the monochrome local glyph.
-    tintName: kind === "qobuz_purchase" ? "warning"
-        : kind === "plex" ? "accent"
-        : (kind === "qobuz" || kind === "qobuz_download" || kind === "offline")
-            ? "secondary"
-            : root.localTint
+    readonly property bool isQobuz: kind === "qobuz" || kind === "qobuz_download"
+        || kind === "qobuz_purchase" || kind === "offline"
+    readonly property bool isPlex: kind === "plex"
+    readonly property bool isPurchase: kind === "qobuz_purchase"
+
+    // SourceGlyph.slint:31 — the Qobuz marks run one pixel larger.
+    width: root.isQobuz ? root.glyphSize + 2 : root.glyphSize
+    height: width
+
+    readonly property string brandDir: "qrc:/qt/qml/com/blitzfc/qbz/qml/assets/brand/"
+
+    // --- The brand marks: UNTINTED, by rule -------------------------------
+    Image {
+        id: mark
+        anchors.fill: parent
+        visible: (root.isQobuz && !root.isPurchase) || root.isPlex
+        source: root.isPlex ? root.brandDir + "plex-logo.svg"
+                            : root.brandDir + "qobuz-logo-filled.svg"
+        fillMode: Image.PreserveAspectFit   // SourceGlyph's `image-fit: contain`
+        // Decode at the size actually drawn: these are a 512x512 and a
+        // ~1000x1006 source rendered into 15-16px.
+        sourceSize.width: root.width
+        sourceSize.height: root.height
+        smooth: true
+        asynchronous: true
+    }
+
+    // --- Purchased: the same mark, gold ------------------------------------
+    // The only arm that tints a multi-colour asset, so the only one that needs
+    // an effect. `_noShaders` degrades to the plain mark — the source is still
+    // legible, it just loses the "purchased" colour, which beats an empty cell.
+    readonly property bool _noShaders: GraphicsInfo.api === GraphicsInfo.Software
+        || GraphicsInfo.api === GraphicsInfo.Null
+    Image {
+        id: purchaseMark
+        anchors.fill: parent
+        visible: root.isPurchase
+        source: root.brandDir + "qobuz-logo-filled.svg"
+        fillMode: Image.PreserveAspectFit
+        sourceSize.width: root.width
+        sourceSize.height: root.height
+        smooth: true
+        asynchronous: true
+        layer.enabled: root.isPurchase && !root._noShaders
+        layer.effect: MultiEffect {
+            colorization: 1.0
+            // SourceGlyph.slint:27 — the §8.7 purchase gold.
+            colorizationColor: "#eab308"
+        }
+    }
+
+    // --- Local / anything else: the monochrome glyph, tinted ---------------
+    QbzIcon {
+        anchors.fill: parent
+        visible: !root.isQobuz && !root.isPlex
+        name: "hard-drive"
+        tintName: root.localTint
+    }
 }

crates/qbz-qt/qml/views/myqbz/DiscoCandidateRow.qml

@@ -430,6 +430,9 @@ Rectangle {
                 SourceIcon {
                     anchors.centerIn: parent
                     kind: root.candidate.source || ""
+                    // Row glyph — SourceGlyph.slint:29-30.
+                    glyphSize: 15
+                    localTint: "muted"
                 }
             }
         }

crates/qbz-qt/qml/views/myqbz/MyQbzDetailRow.qml

@@ -354,6 +354,10 @@ Rectangle {
                 x: 0
                 anchors.verticalCenter: parent.verticalCenter
                 kind: root.sourceKind
+                // Row glyph, so SourceGlyph.slint's numbers (15px, muted),
+                // not the version picker's defaults.
+                glyphSize: 15
+                localTint: "muted"
             }
         }